js iframe刷新子页面

<iframe id="myIframe" src="https://example.com/page.html"></iframe>
<button onclick="refreshIframe()">刷新</button>

<script>
function refreshIframe() {
    var iframe = document.getElementById('myIframe');
    iframe.src = iframe.src; // 重新设置 src 属性
}
</script>

<iframe id="myIframe" src="https://example.com/page.html"></iframe>
<button onclick="refreshIframe()">刷新</button>

<script>
function refreshIframe() {
    var iframe = document.getElementById('myIframe');
    if (iframe.contentWindow) {
        iframe.contentWindow.location.reload();
    }
}
</script>

// 主页面发送消息
window.frames[0].postMessage('refresh', 'https://example.com');

// 子页面接收消息并刷新
window.addEventListener('message', function(event) {
    if (event.data === 'refresh') {
        location.reload();
    }
});

// 保存状态
localStorage.setItem('formData', JSON.stringify(formData));

// 恢复状态
window.addEventListener('load', function() {
    var formData = JSON.parse(localStorage.getItem('formData'));
    // 恢复表单数据
});